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Load data for .300 Norma Mag + .308 | 180gr | Winchester FailSafe

Recommended Powder(s):

.300 Norma Mag + .308 | 180gr | Winchester FailSafe

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 180gr | Winchester FailSafe
Bullet Weight:
180gr | 11.7g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.275" | 32.4mm
Caliber:
.300 Norma Mag load data
Case Length (l3):
2.490" | 63.2mm
Cartridge Length (C.O.L.):
3.625" | 92.1mm
Seated Depth:
0.140" | 3.6mm
Shank Seated Depth:
0.140" | 3.6mm
Case Capacity:
104.0 Grains of Water | 6.75 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B6638_C365
Last updated:
2025-01-01

Load data for 110 loads in caliber .300 Norma Mag with .308 | 180gr | Winchester FailSafe bullet and 55 powder(s). The key underlying parameters are shown in the table above.

  • Important Notice: DO NOT go below Minimum Charge or above Maximum Charge unless there are reasons. Since xxlreloading.com has no control over the equipment and components used by the customer and the data used in connection with the website, any responsibility and liability for the results achieved is rejected. Also see our Terms of Service

    Questions regarding the load data: Please read the information in the next tab "Explanations".

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  • We recommend you limit powder range to relevant brands to speed up re-calculation of results

    Use the Personalized Load Calculator to customize loads to your own specific requirements. Find more details in the help section.

    Our default view only displays powders/loads that fulfill certain criteria: Max pressure of a load <=90% of Max. Standardized Pressure. Fill Rate (Min FR): >80% and <100% for rife loads,  >60% and <100% for pistol loads. Min. Propellant Combustion (Min z): >90% for rifle loads , >80% for pistol/revolver loads. Relax these criteria at your own risk to potentially get more powders shown in the load tables.

    .

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Click on the desired row in the tables below to add a specific load / powder to your Diary and manage there.

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
89%
57159
90%
**15
100%
ADI AR 2213 👍
<<locked>>
92%
57348
90%
**61
99%
ADI AR 2217
<<locked>>
97%
49269
77%
**17
98%
ADI AR 2225
<<locked>>
97%
44585
70%
**77
99%
Accurate 3100
<<locked>>
92%
57363
90%
**49
100%
Accurate 4350
<<locked>>
83%
56913
89%
**66
100%
Accurate MAGPRO
<<locked>>
92%
57348
90%
**68
98%
Alliant Reloder-16
<<locked>>
85%
57000
89%
**09
100%
Alliant Reloder-19
<<locked>>
89%
56985
89%
**05
100%
Alliant Reloder-22 👍
<<locked>>
92%
56898
89%
**35
100%
Alliant Reloder-23
<<locked>>
93%
57276
90%
**92
100%
Alliant Reloder-25 👍
<<locked>>
97%
56565
89%
**54
100%
Alliant Reloder-26
<<locked>>
89%
57421
90%
**77
100%
[Alliant Reloder-33]*
<<locked>>
97%
46282
73%
**13
93%
Hodgdon H1000
<<locked>>
97%
49269
77%
**17
98%
Hodgdon H4350
<<locked>>
87%
57363
90%
**59
100%
Hodgdon H4831
<<locked>>
94%
56811
89%
**92
98%
Hodgdon H4831 SC
<<locked>>
91%
57261
90%
**95
99%
Hodgdon Hybrid 100V
<<locked>>
87%
57145
90%
**23
100%
Hodgdon Retumbo
<<locked>>
97%
44585
70%
**77
99%
Hodgdon TrailBoss
<<locked>>
97%
35795
56%
**50
100%
IMR 4350
<<locked>>
85%
57000
89%
**46
100%
IMR 4831
<<locked>>
88%
57043
89%
**46
100%
IMR 4955 Enduron
<<locked>>
92%
57043
89%
**59
99%
IMR 7828 SSC 👍
<<locked>>
91%
57276
90%
**58
99%
[IMR 7977 Enduron]*
<<locked>>
97%
57188
90%
**10
93%
IMR 8133 Enduron
<<locked>>
97%
40596
64%
**79
96%
Lovex S070
<<locked>>
84%
56855
89%
**49
100%
Lovex S071
<<locked>>
97%
56826
89%
**49
100%
Norma 204
<<locked>>
85%
56985
89%
**92
99%
Norma 217
<<locked>>
97%
40741
64%
**05
98%
Norma MRP 👍
<<locked>>
90%
57305
90%
**68
100%
Norma URP
<<locked>>
84%
57188
90%
**69
100%
Ramshot Hunter
<<locked>>
85%
56898
89%
**95
100%
Ramshot Magnum
<<locked>>
92%
57014
89%
**15
100%
ReloadSwiss RS 14
<<locked>>
96%
36492
57%
**96
100%
ReloadSwiss RS 62
<<locked>>
83%
56927
89%
**82
100%
ReloadSwiss RS 70
<<locked>>
84%
56913
89%
**28
100%
ReloadSwiss RS 76
<<locked>>
97%
56333
88%
**23
100%
ReloadSwiss RS 80
<<locked>>
97%
51155
80%
**02
97%
Rottweil R 904
<<locked>>
88%
57232
90%
**72
99%
Rottweil R 905
<<locked>>
89%
57116
90%
**12
100%
SNPE Vectan Tubal 7000
<<locked>>
84%
57101
89%
**90
100%
Somchem S361
<<locked>>
88%
57421
90%
**40
99%
Somchem S365
<<locked>>
86%
57000
89%
**63
100%
Somchem S385
<<locked>>
89%
57261
90%
**69
100%
Vihtavuori N150
<<locked>>
85%
56985
89%
**71
100%
Vihtavuori N165
<<locked>>
94%
57087
89%
**53
100%
Vihtavuori N555
<<locked>>
90%
56913
89%
**86
100%
Vihtavuori N560
<<locked>>
92%
57130
90%
**71
99%
Vihtavuori N565
<<locked>>
96%
56898
89%
**48
99%
Vihtavuori N568
<<locked>>
97%
52330
82%
**09
97%
[Vihtavuori N570]*
<<locked>>
97%
49995
78%
**02
94%
Winchester 6.5 StaBALL
<<locked>>
84%
57232
90%
**97
100%
Winchester StaBALL HD
<<locked>>
94%
56927
89%
**91
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
43874
69%
**69
97%
ADI AR 2213
<<locked>>
81%
39262
62%
**97
95%
[ADI AR 2217]*
<<locked>>
82%
30690
48%
**64
90%
[ADI AR 2225]*
<<locked>>
81%
26745
42%
**75
91%
Accurate 3100
<<locked>>
81%
39900
63%
**44
99%
Accurate 4350
<<locked>>
81%
52721
83%
**97
100%
[Accurate MAGPRO]*
<<locked>>
81%
38638
61%
**87
92%
Alliant Reloder-16
<<locked>>
81%
50546
79%
**00
100%
Alliant Reloder-19
<<locked>>
81%
43787
69%
**62
97%
Alliant Reloder-22
<<locked>>
81%
39827
62%
**17
97%
Alliant Reloder-23
<<locked>>
81%
38464
60%
**67
100%
Alliant Reloder-25
<<locked>>
81%
33330
52%
**85
98%
Alliant Reloder-26
<<locked>>
81%
42815
67%
**28
100%
[Alliant Reloder-33]*
<<locked>>
92%
39247
62%
**53
90%
[Hodgdon H1000]*
<<locked>>
82%
30690
48%
**64
90%
Hodgdon H4350
<<locked>>
81%
47514
74%
**89
99%
[Hodgdon H4831]*
<<locked>>
81%
37072
58%
**95
93%
Hodgdon H4831 SC
<<locked>>
81%
41278
65%
**94
95%
Hodgdon Hybrid 100V
<<locked>>
81%
47369
74%
**76
100%
[Hodgdon Retumbo]*
<<locked>>
81%
26745
42%
**75
91%
Hodgdon TrailBoss
<<locked>>
81%
28529
45%
**93
100%
IMR 4350
<<locked>>
81%
49864
78%
**35
99%
IMR 4831
<<locked>>
81%
45513
71%
**59
100%
IMR 4955 Enduron
<<locked>>
81%
40886
64%
**54
95%
IMR 7828 SSC
<<locked>>
81%
40350
63%
**43
95%
[IMR 7977 Enduron]*
<<locked>>
92%
48689
76%
**66
90%
[IMR 8133 Enduron]*
<<locked>>
88%
30240
47%
**97
90%
Lovex S070
<<locked>>
81%
51721
81%
**64
100%
Lovex S071
<<locked>>
81%
34490
54%
**23
97%
Norma 204
<<locked>>
81%
50183
79%
**77
99%
[Norma 217]*
<<locked>>
84%
26469
41%
**95
90%
Norma MRP
<<locked>>
81%
41872
66%
**82
98%
Norma URP
<<locked>>
81%
51372
81%
**77
100%
Ramshot Hunter
<<locked>>
81%
50198
79%
**77
100%
Ramshot Magnum
<<locked>>
81%
36898
58%
**44
96%
ReloadSwiss RS 14
<<locked>>
81%
29196
46%
**32
100%
ReloadSwiss RS 62
<<locked>>
81%
52808
83%
**23
100%
ReloadSwiss RS 70
<<locked>>
81%
50981
80%
**43
100%
[ReloadSwiss RS 76]*
<<locked>>
81%
31618
50%
**66
94%
[ReloadSwiss RS 80]*
<<locked>>
85%
33272
52%
**95
90%
Rottweil R 904
<<locked>>
81%
45208
71%
**49
97%
Rottweil R 905
<<locked>>
81%
43395
68%
**59
98%
SNPE Vectan Tubal 7000
<<locked>>
81%
52634
82%
**25
100%
Somchem S361
<<locked>>
81%
45847
72%
**36
96%
Somchem S365
<<locked>>
81%
48776
76%
**35
100%
Somchem S385
<<locked>>
81%
44019
69%
**33
98%
Vihtavuori N150
<<locked>>
81%
51140
80%
**82
100%
Vihtavuori N165
<<locked>>
81%
37130
58%
**82
96%
Vihtavuori N555
<<locked>>
81%
42931
67%
**53
100%
[Vihtavuori N560]*
<<locked>>
81%
39755
62%
**20
94%
[Vihtavuori N565]*
<<locked>>
81%
34693
54%
**82
92%
[Vihtavuori N568]*
<<locked>>
85%
34374
54%
**15
90%
[Vihtavuori N570]*
<<locked>>
91%
40437
63%
**82
90%
Winchester 6.5 StaBALL
<<locked>>
81%
52272
82%
**31
100%
Winchester StaBALL HD
<<locked>>
81%
35056
55%
**07
100%

Start Load - Barrel Length: 23.60''

Any powder missing? Then click here.

FR ... fill rate of the cartridge in percent

MaxP ... max. pressure of load in psi or bar

% ... max. pressure of load in percent of the maximum allowed pressure for this caliber 

V(0) ... muzzle velocity in feet per second (fps) or  meters per second (m/s)

z ... powder burnt in percent

[...] *... not dangerous but load has suboptimal powder burnt with possible characteristics such as extensive muzzle flash or inaccurate loads.

[...] ²... fill rate low - you might want to consider using a filler to ensure proper ignition.

[...] ᴾ... possible press load - work up slowly to this load while watching for signs of excessive pressure.

👍  ... recommended powder/load for this caliber and bullet combination based on its ballistic performance.

<<locked>>... you need to buy an access license to unlock the data

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